Each Character has 3 main Attributes:

Strength: The main attribute of a "Muscle" character
Wit: The main attribute of a "Brain" character
Charisma: The main attribute of a "Charm" character

Unlike Archetypes, every Character has a score in each Attribute. Those scores are determined by the Character's Archetype, and break down into Primary, Secondary, and Tertiary Attributes.

The Attributes themselves don’t have a quantifiable value, but they determine characteristics which do have their own values.

Attributes per Archetype:

Muscle Character
Strength as primary Attribute
Charisma as secondary Attribute
Wit as tertiary Attribute

Brain Character
Wit as primary Attribute
Strength as secondary Attribute
Charisma as tertiary Attribute

Charm Character
Charisma as primary Attribute
Wit as secondary Attribute
Strength as tertiary Attribute